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公开(公告)号：US09143100B2
公开(公告)日：2015-09-22
申请号：US14066980
申请日：2013-10-30
Applicant: Texas Instruments Incorporated
Inventor： Swaminathan Sankaran , Bradley Allen Kramer , Hassan Ali , Nirmal C. Warke
CPC classification number: H03F3/45 , H03F1/00 , H03F1/42 , H03F3/45475 , H03F2200/36 , H03F2200/411 , H03F2200/537
Abstract: In an amplifier, a first stage receives a differential input voltage, which is formed by first and second input voltages, and outputs a first differential current in response thereto on first and second lines having respective first and second line voltages. A second stage receives the first and second line voltages and outputs a second differential current in response thereto on third and fourth lines having respective third and fourth line voltages. A transformer includes first and second coils. A first terminal of the first coil is coupled through a first resistor to the first line. A second terminal of the first coil is coupled through a second resistor to the second line. A first terminal of the second coil is coupled through a third resistor to the third line. A second terminal of the second coil is coupled through a fourth resistor to the fourth line.
Abstract translation: 在放大器中，第一级接收由第一和第二输入电压形成的差分输入电压，并且在具有相应的第一和第二线电压的第一和第二线上响应于此输出第一差分电流。 第二级接收第一和第二线电压，并在具有相应的第三和第四线电压的第三和第四线上响应于此输出第二差分电流。 变压器包括第一和第二线圈。 第一线圈的第一端子通过第一电阻器耦合到第一线路。 第一线圈的第二端子通过第二电阻器耦合到第二线路。 第二线圈的第一端子通过第三电阻器耦合到第三线路。 第二线圈的第二端子通过第四电阻器耦合到第四线路。
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公开(公告)号：US20240201376A1
公开(公告)日：2024-06-20
申请号：US18589693
申请日：2024-02-28
Applicant: Texas Instruments Incorporated
Inventor： Terry A. Bartlett , Nirmal C. Warke , David P. Magee , Jeffrey Scott Farris , Patrick Oden
CPC classification number: G01S17/26 , G01S7/4814 , G01S7/4816 , G01S7/4817 , G01S7/484
Abstract: In described examples, a method includes receiving light from a field of view on a spatial light modulator that includes a two-dimensional array of picture elements in rows and columns; and determining a portion of the two-dimensional array that corresponds to a region of interest in response to a transmit scan beam illuminating the field of view. The method also includes directing light from the portion of the two-dimensional array to a photodiode, and directing light outside the portion away from the photodiode.
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公开(公告)号：US20210096442A1
公开(公告)日：2021-04-01
申请号：US16586644
申请日：2019-09-27
Applicant: Texas Instruments Incorporated
Inventor： Jeffrey Matthew Kempf , Nirmal C. Warke , David P. Magee , Rahmi Hezar , Baher S. Haroun
Abstract: In described examples, a system (e.g., a security system or a vehicle operator assistance system) is configured to configure a phased spatial light modulator (SLM) to generate a diffraction pattern. A coherent light source is optically coupled to direct coherent light upon the SLM. The SLM is configured to project diffracted coherent light toward a region of interest. An optical element is configured to focus the diffracted coherent light toward the at least one region of interest.
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公开(公告)号：US20200292681A1
公开(公告)日：2020-09-17
申请号：US16835432
申请日：2020-03-31
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Nirmal C. Warke , David P. Magee , Baher S. Haroun
Abstract: Described example aspects include an integrated circuit includes a timing controller configured to select a selected time slot in a measurement period having a plurality of time slots and a transmit driver configured to provide a transmit signal in accordance with the selected time slot, in which the transmit signal is transmitted to an optical transmitter. The integrated circuit also includes a range estimator configured to receive a received signal after the selected time slot from an optical receiver that is configured to receive a reflection of light transmitted by the optical transmitter off an object, the range estimator configured to determine an estimated distance of the object based on the received signal.
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公开(公告)号：US10698108B2
公开(公告)日：2020-06-30
申请号：US15681468
申请日：2017-08-21
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： David P. Magee , Nirmal C. Warke , Baher S. Haroun
IPC: G01C3/08 , G01S17/10 , G01S17/42 , G01S17/26 , G01S7/484 , G01S7/4863 , G01S7/4865
Abstract: An optical distance measuring system includes a transmitter and a receiver. The transmitter is configured to generate a first optical waveform and direct the first optical waveform toward a first scan point within a field of view (FOV). The receiver is configured to receive the first optical waveform reflected off a first object within the FOV, direct the first optical waveform reflected off the first object to a first photodiode group of an array of photodiode elements, and determine a distance to the first object based on a time of flight of the first optical waveform from the transmitter to the first object and back to the receiver.
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Patent Agency Ranking
26.发明申请公开(公告)号：US20190101633A1
公开(公告)日：2019-04-04
申请号：US16208306
申请日：2018-12-03
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Nirmal C. Warke , David P. Magee
Abstract: An example apparatus includes a transducer to receive a reference signal and a reflected signal, the reflected signal being the reference signal after being reflected of a target; a filter to generate a band-pass reference signal and a band-pass reflected signal by filtering (A) reference signal samples associated with the reference signal and (B) reflected signal samples associated with the reflected signal; a correlator to generate a first correlation by correlating the reference signal samples with the reflected signal samples and a second correlation by correlating the band-pass reference signal with the band-pass reflected signal; and a delay estimator to determine a distance to the target based on the first correlation (coarse delay) and the second correlation (fine delay) and output a signal including the distance to the target.
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公开(公告)号：US20150222004A1
公开(公告)日：2015-08-06
申请号：US14684821
申请日：2015-04-13
Applicant: Texas Instruments Incorporated
Inventor： Swaminathan Sankaran , Nirmal C. Warke , Hassan Omar Ali , Bradley A. Kramer
CPC classification number: H01P5/222 , H01P5/16 , H01Q3/26 , H01Q21/0075 , Y10T29/49016
Abstract: An apparatus is provided. First and second hybrid couplers are provided with each having a first port, a second port, a third port, a fourth port and with each being substantially curvilinear. The fourth ports of the first and second hybrid couplers are first and second isolation port that are mutually coupled. The first port of the first hybrid coupler is configured to carry a first portion of a differential signal, and the first port of the second hybrid coupler is configured to carry a second portion of the differential signal.
Abstract translation: 提供了一种装置。 提供了第一和第二混合耦合器，每个耦合器具有第一端口，第二端口，第三端口，第四端口，并且每个具有大致曲线。 第一和第二混合耦合器的第四端口是相互耦合的第一和第二隔离端口。 第一混合耦合器的第一端口被配置为承载差分信号的第一部分，并且第二混合耦合器的第一端口被配置为承载差分信号的第二部分。
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公开(公告)号：US20150091642A1
公开(公告)日：2015-04-02
申请号：US14066980
申请日：2013-10-30
Applicant: Texas Instruments Incorporated
Inventor： Swaminathan Sankaran , Bradley Allen Kramer , Hassan Ali , Nirmal C. Warke
IPC: H03F1/00
CPC classification number: H03F3/45 , H03F1/00 , H03F1/42 , H03F3/45475 , H03F2200/36 , H03F2200/411 , H03F2200/537
Abstract: In an amplifier, a first stage receives a differential input voltage, which is formed by first and second input voltages, and outputs a first differential current in response thereto on first and second lines having respective first and second line voltages. A second stage receives the first and second line voltages and outputs a second differential current in response thereto on third and fourth lines having respective third and fourth line voltages. A transformer includes first and second coils. A first terminal of the first coil is coupled through a first resistor to the first line. A second terminal of the first coil is coupled through a second resistor to the second line. A first terminal of the second coil is coupled through a third resistor to the third line. A second terminal of the second coil is coupled through a fourth resistor to the fourth line.
Abstract translation: 在放大器中，第一级接收由第一和第二输入电压形成的差分输入电压，并且在具有相应的第一和第二线电压的第一和第二线上响应于此输出第一差分电流。 第二级接收第一和第二线电压，并在具有相应的第三和第四线电压的第三和第四线上响应于此输出第二差分电流。 变压器包括第一和第二线圈。 第一线圈的第一端子通过第一电阻器耦合到第一线路。 第一线圈的第二端子通过第二电阻器耦合到第二线路。 第二线圈的第一端子通过第三电阻器耦合到第三线路。 第二线圈的第二端子通过第四电阻器耦合到第四线路。
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公开(公告)号：US20140198550A1
公开(公告)日：2014-07-17
申请号：US13741010
申请日：2013-01-14
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Swaminathan Sankaran , Vijaya B. Rentala , Brian B. Ginsburg , Srinath M. Ramaswamy , Eunyoung Seok , Baher Haroun , Bradley A. Kramer , Hassan Ali , Nirmal C. Warke
Abstract: An apparatus is provided. A differential pair of transistors is configured to receive a first differential signal having a first frequency, and a transformer, having a primary side and a secondary side is provided. The primary side of the transformer is coupled to the differential pair of transistors, and the secondary side of the transformer is configured to output a second differential signal having a second frequency, where the second frequency is greater than the first frequency. A first transistor is coupled to the first supply rail, the primary side of the transformer, and the differential pair of transistors, where the first transistor is of a first conduction type. A second transistor is coupled to the second supply rail, the primary side of the transformer, and the differential pair of transistors, where the second transistor is of a second conduction type.
Abstract translation: 提供了一种装置。 差分对晶体管被配置为接收具有第一频率的第一差分信号，并且提供具有初级侧和次级侧的变压器。 变压器的初级侧耦合到差分对晶体管，并且变压器的次级侧被配置为输出具有第二频率的第二差分信号，其中第二频率大于第一频率。 第一晶体管耦合到第一电源轨，变压器的初级侧和差分对晶体管，其中第一晶体管是第一导电类型。 第二晶体管耦合到第二电源轨，变压器的初级侧和差分对晶体管，其中第二晶体管是第二导电类型。
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公开(公告)号：US08760899B1
公开(公告)日：2014-06-24
申请号：US13741010
申请日：2013-01-14
Applicant: Texas Instruments Incorporated
Inventor： Swaminathan Sankaran , Vijaya B. Rentala , Brian B. Ginsburg , Srinath M. Ramaswamy , Eunyoung Seok , Baher Haroun , Bradley A. Kramer , Hassan Ali , Nirmal C. Warke
IPC: H02M5/275
Abstract: An apparatus is provided. A differential pair of transistors is configured to receive a first differential signal having a first frequency, and a transformer, having a primary side and a secondary side is provided. The primary side of the transformer is coupled to the differential pair of transistors, and the secondary side of the transformer is configured to output a second differential signal having a second frequency, where the second frequency is greater than the first frequency. A first transistor is coupled to the first supply rail, the primary side of the transformer, and the differential pair of transistors, where the first transistor is of a first conduction type. A second transistor is coupled to the second supply rail, the primary side of the transformer, and the differential pair of transistors, where the second transistor is of a second conduction type.
Abstract translation: 提供了一种装置。 差分对晶体管被配置为接收具有第一频率的第一差分信号，并且提供具有初级侧和次级侧的变压器。 变压器的初级侧耦合到差分对晶体管，并且变压器的次级侧被配置为输出具有第二频率的第二差分信号，其中第二频率大于第一频率。 第一晶体管耦合到第一电源轨，变压器的初级侧和差分对晶体管，其中第一晶体管是第一导电类型。 第二晶体管耦合到第二电源轨，变压器的初级侧和差分对晶体管，其中第二晶体管是第二导电类型。
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